A rip current is a strong channel of water moving away from the shore. Rip currents typically form along the beach at breaks in the offshore underwater sandbar, but they can also form near structures such as jetties and piers.
Best disk wiping tools-the tool depends on the task. Disk wiping is a non-destructive way of permanently removing data very different from data destruction, either physical or using a degaussing system that does the same job at the expense of destroying the drive itself.
WIPING THE HARD DRIVE. 1  Place the disk into the CD/DVD drive in the computer you wish to wipe. 2  Reboot the machine, and boot to the disc. 3  You may need to go into the BIOS to set the PC to boot from the CD/DVD drive, or use a temporary boot option to select Boot from CD.